We’re only two episodes into the run of HBO‘s new murder-mystery series “True Detective,” but the theories are already starting to fly. Are detectives Rustin Cohle (Matthew McConaughey) and Martin Hart (Woody Harrelson) actually the same person? Did one of them actually commit the murder at the center of the show? Is it possible there’s no big, M. Night Shyamalan twist at all?

The Wall Street Journal’s Geeks on the Street ponder these questions, while recommending some other favorite murder mysteries.